The Allier (UK: /ˈælieɪ/ AL-ee-ay,[1] US: /ælˈjeɪ, ɑːlˈjeɪ/ a(h)l-YAY,[2][3] French: [alje] ⓘ; Occitan: Alèir) is a river in central France.Its source is in the Massif Central, in the Lozère department, east of Mende.[4] The Allier flows through the following departments, and along the following towns, from source to mouth: The main tributaries of the Allier are: The Allier is one of the rare places in southern Europe where the freshwater grayling (Thymallus thymallus), known in French as ombre des rivières, occurs in a natural habitat.You can help Wikipedia by expanding it.This Centre-Val de Loire geographical article is a stub.You can help Wikipedia by expanding it.This article related to a river in France is a stub.